查询词典 pentagons

Its occurrence in regular pentagons and decagons was duly observed, as well as in the dodecahedron (a regular polyhedron whose twelve faces are regular pentagons).

它出现在正五边形和正十边形以及正12面体（一种规则多面体，它的每个面都是正五边形）中是易于观察到的。

Papovaviruses are also icosahedral symmetry viruses, but their capsid structures disobey the quasi-equivalence theory. Papovaviruse capsids are all composed of pentagons. Furthermore, these pentagons can not be connected directly, because there is a certain distance among them.

乳多空病毒尽管也是二十面体对称的病毒，但其衣壳结构违背了准等价原理，它们全是由五边形构建的几何实体，而且奇妙的是这些五边形不能直接拼接在一起，相互间存在一定的距离间隔。

On the basis of the frame of dodecahedron, we apply the method of "spherical stretching" to the frame, we can obtain a novel polyhedron with I_h symmetry, which contains 72 pentagons.

我们在十二面体框架的基础上，利用"球面拉伸"的方法，得到新的具有二十面体对称性，72个五边形构造的的多面体结构。

A dodecahedron with twelve regular pentagons as faces.

有十二个正五角形面的十二面体。

Since the polyhedron consists of 12 regular Pentagons, it is closely connected to the golden section.

由于多面体12正五边形组成，它是密切相关的黄金地段。

Graphics on the Bresenham line drawing algorithm, the midpoint of the algorithm to achieve Circle, and pentagons, hexagons, heptagon filled.

详细说明：关于图形学中的Bresenham画线算法，中点画圆算法的实现，以及五边形，六边形，七边形填充。

Furthermore, the β angle is very close to 108° of the pentagons in the (010) plane of the Cr3 icosahedron.

首次在Al-Cr-Si三元合金系中发现了周期为1.24nm和3.72nm的两种稳定十次准晶。

"The Chinese reaction is unfortunate and results in missed opportunities," said the Pentagons Major Stewart Upton.

"中方的反应是不幸的，造成机会错失，"五角大楼发言人斯图尔特·厄普顿少校表示。

The results available now indicate that glass-like carbon synthesized from phenolic resin is a non-graphitizing carbon, and consists of both sp 2-hybridized carbon atoms that form imperfect graphite structure and sp 3-hybridized carbon atoms that are due to the presence of disordered carbon; and in the fullerene-related structure of glass-like carbon, there exist some pentagons and heptagons carbon rings.

玻璃炭作为一种特殊炭材料已广泛应用于许多领域，其制备、性质、应用以及基本结构的研究已经取得了很大的进展，已有的研究结果表明酚醛树脂基玻璃炭是一种典型的非石墨化炭材料，由 sp2杂化态碳原子和 sp3杂态碳原子组成，且在其类富勒烯结构中存在五元环和七元环。

Their common geometric characteristic is that many joint pentagons are included.

它们的共同点是结构中含有很多连接在一起的五边形，使得它们具有极高的弯曲度，从而展现出比C〓更丰富的化学和物理性质。

The changes of the HAF after liver injury may be related to the volume of blood loss, the intraabdominal pressure and the pneumoperitoneum duration.

肝撞击伤伴失血后肝动脉血流量的变化与失血量、气腹压力以及气腹持续时间等有密切联系。

Reneging on our commitments to the world's poor cannot be an austerity measure, she said.

放弃我们给世界上的穷国的承诺不能成为一种紧缩措施。